Thelonectria guangdongensis a–d ascomata on natural substratum e colony on PDA f colony on SNA g median section through perithecium h–m ascospores n, q, r conidiogenous cells and macroconidia o, p, s–u macroconidia. Scale bars: 0.5 mm (a–d); 50 μm (g); 10 μm (h–u).